How many atoms of hydrogen are in 230  g of hydrogen peroxide ( H2O2)?

Q: C. What is the mass (in grams) of 5.03 × 1022 molecules of CO2 molecules?

A: Number of molecules of any species is given by, => Number of molecules = moles X Avogadro's…

Q: How many moles are there in 825 of Al(OH)3?

A: We have given   825 g  of  Al(OH)3  Molar mass of Al(OH)3 (M) = 27 + 3(16+1)            M = (27 +…

Q: How many moles are in 187 grams of C,Hg(OH)2?

A: Number of moles = mass/molar mass

Q: What is the molar mass of lead (IV) nitrate, Pb(NO3)4?

A:

Q: How many moles are in 303 g of Mg(OH)2?

A: Even a small sample of matter may contain millions of atoms, molecules or ions. In order to deal…

Q: What is the mass in grams of 6.49 × 10²⁵ molecules of Br₂?

A: Avogadro’s number is the number of particles present in one mole of any substance, which has a value…

Q: What is the mass in grams of 10.0 million H2O molecules?

A: Molar mass of water is 18.01

Q: How many chlorine atoms are in 12.2 g of CCl4?

A: To solve this problem we have to first calculate the number of mole of CCl4 then we will calculate…

Q: What is the mass of oxygen in a 782.9g sample of TiO2?

A: Step : 1          What is the mass of oxygen in a 782.9g sample of TiO2?

Q: What is the mass, in grams, of 0.0425 mol of iron(III) phosphate?

A:

Q: How many molecules are in 2.9 g of SF4?

A: Given: Mass of SF4 = 2.9 g Molar Mass of SF4 = 108.47 g/mol Avogadro's number = 6.022×1023

Q: If a sample of Ca(OH)2 is found to contain 5.34 mol of OH" ions how many moles of Ca?+ ions are…

A: Given: moles of OH- ions = 5.34 mol

Q: How many moles of carbon atoms are there in 4.00 mol of C8H18?

A: No. of moles of C8H18 = 4.00 mol (Given) 1 mol of C8H18 contains 8 mol of carbon atoms.

Q: How many atoms are in 86.5 g of potassium dihydrogen phosphate (KH2PO4)?

A: Weight of postassium dihydrogen phosphate ( KH2PO4) = 86.5 grams Molecular weight of potassium…

Q: What is the mass in grams of 7.87 × 10¹⁵ molecules of CS₂?

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: What is the mass of 3.2 x 10² mol of cerium nitrate, Ce(NO3)3(s)?

A: Mass of 1 mole of Ce(NO3)3 = 140 +(14+48)×3 = 326g Mass of 3.2 × 102 mol = 326 × 3.2 × 102…

Q: what is the molar mass of Ca3(PO4)2?

A: The molar mass of the compound can be calculated by the addition of the atomic mass of constituent…

Q: Calculate the mass, in grams, of  0.607  mol of hydrogen peroxide,  H2O2 . mass of  H2O2:

A:

Q: How many grams are in 7.89 x 10 24 atoms of H2SO4?

A:

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H3PO4?

A: Number of moles=Given massMolar massGiven mass of Phosphoric acid=0.1488 gMolar mass of Phosphoric…

Q: How many atoms of hydrogen are present in 24.49 g of C3H7OH?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid , H3PO4?

A: Given : mass of H3PO4 = 0.1488 g Molar mass of H3PO4 = Atomic mass of H X 3 + Atomic mass of P +…

Q: How many atoms of hydrogen are in 132 g of (NH4)2HPO4?

A: Given: 132g of (NH4)2HPO4 The given grams of (NH4)2HPO4 is converted into moles as follows,

Q: The element X forms the chloride containing 75.0% Cl, by mass. What is element X?

A:

Q: How many atoms in 4.93  mol O2?

A: One molecule of O2 contains two oxygen atoms. According to the Avogadro concept, we know that one…

Q: What is the mass, in grams, of 1.223 mol of iron(III)sulfate?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: A sample of rubbing alcohol solution contains ethanol, C2H5OH(l). If the sample contains 1.25 × 1023…

A: Given;

Q: How many grams of hydrogen are in 33.9 g of CH4O?

A: Given  Mass of CH4O = 33.9 gram Mass of Hydrogen = ?

Q: How many moles are there in 23 g of FeO?

A: Given: mass of FeO = 23 g

Q: if CH2O has a molar mass of 282.33 g/mol, what is its molecular formula?

A: We have Empirical formula as CH2O => the ratio of atoms will be  C : H : O = 1 : 2 : 1  Assuming…

Q: How many moles is 83.7 g calcium carbonate, CaCO3 ?

A: Given Mass of Calcium carbonate is 83.7g We have to determine moles in 83.7g of Calcium carbonate.…

Q: How many atoms of H are present in 37.6 g of NH3?

A: Given, Mass of NH3 = 37.6 g Molar mass of NH3 = 17.031 g/mol

Q: What is the empirical formula of C6H10O2?

A: The C6H10O2 is Allyl glycidyl ether.  Empirical formula of a chemical compound is the simplest…

Q: How many moles are in 2.3 x 1023 molecules of uranium (IV) fluoride?

A: Molecular  formula of Uranium(IV) fluoride is UF4. Now, according to Avogadro's theory   1 mol…

Q: How many aluminum atoms are in 25.0 grams of aluminum oxide, Al2O3?

A: The formula of the given compound is Al2O3. One mole of Al2O3 contains two moles of Al atoms.

Q: About how many MOLES of aluminum are present in 152.89 grams of Al2O3?

A: Moles of a compound=given mass of the compoundmolar mass of the compoundMolar mass of Al2O3 is…

Q: How many moles of hydrogen are in 3.06 x 10 g of glycine, C,H;NO,?

A: Given, Mass of glycine = 0.00306g

Q: What is the mass, in grams, of 9.43×1024 molecules of methanol (CH3OH)?

A: Calculate for number of moles of CH3OH: 1 mole of any substance contains 6.022×1023 units (namely…

Q: How many nitrogen atoms are in 12.3g of Ca(NO3)2 ?

A: Here, we have to find the number of nitrogen atoms in 12.3 g of Ca(NO3)2.

Q: How many chlorine atoms are there in 8.4 mol of PCl5?

A:

Q: How many moles are present in 300 grams of Zn3 (PO4)2 ?

A: Given : Mass of Zn3(PO4)2 = 300 g

Q: If 3.72g of iron oxide compound contains 1.12g of oxygen, what is the empirical formula of the…

A:

Q: What is the molar mass of aluminum sulfate, Al2(SO4)3?

A: Given :- molecula formula of aluminium sulfate is Al2(SO4)3  To calculate :- molar mass

Q: How many moles of water, H2OH2O, contain 2.0×10222.0×1022 molecules of water?

A: Mole is the unit of  measurement  for  amount of substance

Q: How many oxygen atoms are in 2.40 g of quartz?

A: quartz :  molecular formula = SiO2 molecular mass = 28 + (2 x 16) g/mol                            =…

Q: 5.2C23 molecules of hand sanitizer, ethanol (C,I IO ) is how many moles?

A: Given, Molecules of Ethanol = 23 General formula is: 1 mole has 6.023 x 1023 molecules.

Q: How many grams of HC2H3O2 are there in 3.6 moles of HC2H3O2?

A: The Mass (in grams) of HC2H3O2 in 3.6 moles of HC2H3O2 is to be calculated.

Q: How many grams of calcium nitrate are present in 55.2 moles of Ca(NO3)2?

A:

Q: How many total atoms are in 0.550 g of P2O5?

A: Given: Molecular formula of phosphorus pentaoxide is P2O5. Mass of P2O5 =0.550 g Number of atoms in…

Q: If the molar mass of the hydrocarbon C3H8 was determined to be 440.97 g/mol, what is the molecular…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.